Window-control mechanism



Feb. 21, 1928. Y 1,659,891

s. w. NlcHoLsoN A v WINDOW CONTROL MECHANISM Filed April 16. 1925 v2 sheets-sheet 1 f'/'gf l: l: f

a 'l i e mmm! i: l /f/ 4L' l `a IHIII I @Hazme t1@ S. W. NICHOLSON WINDOW CONTROL MEGHANISM Feb. 21, 192s.

Filed April 16, 1925 2 Sheets-Sheet 2 @Hoang 6 Patented Feb. 21, 192s.

' UNITED sTATELs PATENT OFFICE.

STANLEY w. NICHOLSON, or TOLEDO, cmo, AssIGNon To THE DnRA COMPANY. or vTOLEDO, oHIo, A conronArIoN on DELAWARE.

Appnoauon mea April 1sy 192s. serial no. 632,419.

This invention relates to window controlmechanisms and particularly relates to mechanisms for actuating the sliding windowsv mobile door having a window equipped with the improved control means;

-Figure 1 is a section on line 1*- of Figure 1; i

Figure 2 is an trol mechanismq;

Figure 3 is a reverse view of the same; Figure 4 is a cross .sectional view of said mechanism takenv online 4 4 of Figure 2.

In these views, the reference character 1 designates an automobile door having in its upper portion the window opening 2.and

enlarged view of the .con-

. provided with a closure for said'4 opening having the nature of a vertically slidable glass plate 3. Said closure, when lowered, is adapted to enter a chamber 4 formed in the lower portion of said door. 5 designates the usual lock board rigidly connecting the side uprights of the door just below the window opening. The present invention locates a control mechanism within the chamber 4, mounting said mechanism upon a vertically elongated sheet metal plate 6. the extremities of which are respectively secured to said lock board and to theboittom sill of the door. At substantially a mid-point 7 of said plate 6 there is pivoted upon said plate a lifter arm 8 which terminally carries a roller 9 engaging ina channel strip 10depending from the closure 3. The pivotal end pprtion of said.V arm 8 is extended slightly yond the pivot element 7 for terminal engagement by a coiledspring 11 downwardly extended to engage an anchorage hook 12 secured within ya slot 13 in the lower `end portiongof said plate 6. The upper end portion of said plate is correspondingly positioned with a slot 13' to function similarly to the slot 13 in case the mounting plate is turned 'end for .end as will hereinafter be ex lained.

he pivotal element 7 is in the nature of a stub'shaft journaled in a bearing 12 rigidly engaged with the plate 6, said shaft rigidly carrying the control handle 132 adjacent 'WINDOW-CONTROL MECHANISM.

the interior surface of the door. A lost motion actuating connection between .said handle and the arm 8 is provided, the lost motion movement being utilized to release latch means whereby the arm 8 is adaptedy to be held positively adjusted. Thus, there is rigidly mounted upon the shaft 7 a cam plate 14 of triangular shape, said shaft engaging one apex of said plate. At its other apices said plate is formed with lugs 15 projectving transversely to said plate in the plane of travel of the arm 8, the latter being loosely mounted upon the shaft 7 and retained in place thereon by said cam plate. A wire spring 15 engages the shaft 7 and the plate 14 to normally maintain a neutral position of said plate with respect to the control arm. .that is to say, said lugs being normally held by said spring equi-distantly spaced from said arm. 16v is a cam slot. in the plate 14 having portions angularly intersecting at the center line of the plate. Into said slot there projects a pin 17 carried by a latch bolt 18 slidable longitudinally upon the arm 8 and outwardly` urged upon said arm by a coil spring 19 into normal engagement with a semi-annular toothed rack 20, the control armduring its angular travel being held in proper proximity toy said rack b v a guide bracket 21 fast upon said arm.

In the use of the described control mechanism, turning of the control handle 132 in either'direction initially rocks the cam plate 14 without affecting the varm 8. Through rocking of said plate. the cam'edge of the plate 14 acts upon the pin 17 to retract the latch bolt 18 and release the latter from the arcuate rack 20. Continued turningof the handle 13 acts through engagement of one or other of lthe lugs 15 with the arm 8 to swing said arm up or down according to the direction of turning of the handle, the latch bolt being retained in retracted position by ythe plate 14 during such lifting or lowering movement.

It is to be observed that the entire described mechanism, including the coiled spring 11., has a unitary mounting-upon the plate 6, installation of the device being thus facilitated. Also, said mounting permits the vlocation of the mechanism as regards the relative spacing from the two uprights of the door to be selected at wlll, since obviously the mounting plate 6 may be moved to or from either upright without 'aifecting the operation. v 1 v v Another desirablefeature lies in the fact that the same control .unit is applicable for use either in a right hand or left hand door of a vehicle. That isv to say, the mounting.

of the mechanism upon the plate 6 centrally with respect to the ends thereof permits the mounting plate to be turned end for end to adapt the unit for use on either of the opposite' side doors of a vehicle. The two slots 13 Land 13 permit the spring 11 to be downwardly extended and engaged with either end of the plate 6 which may be secured to the sill of the door.

Thearcuate rack 20 is of suicient diameter topermit accurate engagement thereof by the teeth of the latch bolt-18 without appreciable backlash. Because. of the arcuate arm and actuating means substantlally at a mid-point of said plate, whereby said plate carrying said arm andiadctuating means is reversible to adapt the lmechanism for use upon right hand or left hand windows of a vehicle. v

2. In a window control mechanism, the combination with a sliding closure and a chamber receiving the same in open sition, of a control mechanismdisposed within said chamber comprising a mounting plate mounted upon atransverse frame member and elongated in the direction vof travel of the closure, and a control arm and actuating means therefor mounted upon said plate lsubstantially midway of its length, whereby lsaid plate carrying said mechanism is reversible end for end to adapt said mechanism for right hand or left hand use in a vehicle.

3. A window control mechanism comprising an elongated mounting plate, a control arm pivotal upon said Iplate substantially midway of its length, actuating means for said arm carried by the plate,va'nd a counterbalance spring extending from said arm`altelrnatively to either end portion of said p ate.

4. A window control mechanism comprising a mounting plate, a control arm. ivoted thereupon, an arcuate rack mounte -upon said plate and havin-g its center of curvature fat the pivot ofusaid arm, alatch 'member`slidable upon the arm for engagement with said rack, an actuating member engaging the pivot of said arm, anda lost mo? tion connection between'said actuatin member and arm, retraction of said'latc member being effected by the lost motion movement.

5. In a window control lmechanism a pivotal control arm, a copivotal cam plate having lugs engaging atop'posite sides of said control arm, a spring acting on said cam plate maintaining said.- plate normally equiportions alternatively engageable with said. arm

distant fromsaid arm, a latch member slidx for moving the same inI opposite directions,

a stationary latch element, a' cooperating latch element `upon said arm and movable relative thereto, means upon Asaid cooperating latch element and cam plate for retract-1.

ing the former upon movement of the latter,

and means for normally retaining said cooperating latch element in engagement with said stationary latch element.

` 7. In a window control mechanism, a pivotaLcontrol arm, a copivotal cam plate having a cam slot and lugs engaging the opposite sides of said' control 4 arm, a vsta-` tionary latch element, a coo erating latch element slidable longitudina u n said arm, means upon said cooperating atch element and en geable in the cam slot of said cam plate w ereby said cooperating latch element is retracted upon movement of said cam plate, and a spring acting on said cooperating latch element formamtainin the same normally in engagement withsail? stationary latch element.' r

. In testimony whereof I my signature.

STANLEY W. NICHOLSON. 

